Coke-oven door-operating and pusher machine



2 Sheets-Sheet 1 Swumtoz GLEN/V N/LE5 Nwi sw Oct. 28, 1930.

G. H. NILES COKE OVEN DOOR OPERATING AND PUSHER MACHINE Filed Jan. 15, 1927 Oct. 28, 1930. G. H. NILES 1,779,443

COKE OVEN DOOR OPERATING AND PUSHER MACHINE I Filed'dan. ,15, 1927 2 Sheets-Sheet 2 gum/whoa GLENN H. N/LE5 3313 /1/5 Gum;

Patented Oct. 28, '1930 UNITED STATES PATENT OFFICE GLENN NILES, RIDGEWOOD, NEW JERSEY, ASSIGNOR TO IMPROVED EQUIPMENT COMPANY, OF NEW YORK, N. Y., A CORPORATION OF COLORADO COKE-OVEN DOOR-OPERATING AND PUSHER MACHINE Application filed January 15, 1927. Serial No. 161,269.

This invention relates .to machinesfor use in connection with the removal of coke from coke ovens, for leveling the charge therein and for handling the coke oven door.

One of the principal objects of the invention is to provide on one chassis or carriage a combination of means which will make it possible to maintain the carriage in one position in front of the oven during the operations of handling the door of the oven, ejecting the coke therefrom and leveling the charge therein to the end that the time required for discharging and charging the oven may be reduced to a minimum and the numher of ovens which can be served by one machine materially increased.

Another object of the invention is to provide a door-handling mechanism of such construction that the coke-ejecting ram may be utilized as a component part of the doorhandling mechanism. I

Other objects and advantages will be herein'aft-er more fully set forth and pointed out in the accompanying specification.

In the drawings wherein the preferred form of the invention is shown,

Fig. 1 is a side elevation ofmy im roved machine for handling the doors of coke ovens, for ejecting the coke therefrom and for leveling the charge therein; the-view also showing the door of a coke oven in its frame and one element of the door-handling mechanism in its initial position for handling the door. The view also shows in dotted lines the final position of the door out, of path of movement of the coke-ejecting means and also shows in dotted lines the coke-ejecting means in its retracted position. k

Fig. 2 is a front elevation on an enlarged scale of so much of the machine as is sufficient duced scale of a battery of coke ovens, the top at D adapted to run on tracks E in front of a battery of coke ovens generally indicated at F in Fig. 4. The charge-leveling bar is arranged directly above the ram A in suitably spaced relation therefrom.

The specific mechanisms for moving the bar and ram form no part of the present invention and have therefore been illustrated in a simple and more or less diagrammatic manner. It is sufiicient to say that any suitable or approved means may be utilized for moving the ram and bar longitudinally.

Coming now to adescription of thedoorhandling mechanism and referring more par ticularly to Figs. 2 and 3, there is pivoted on the head 10 of the coke-ejecting ram at a point below the top thereof a door-elevating arm or lever 12, the pivot being indicated at 14. For locking the arm there is conveniently provided a rearwardly extending latch 16 having a plurality of notches in its under surface for selective engagement with a pin 18 anchored in the ram head. The normal position of the arm 12 is at an angle to the face of the ram head as shown in'Fig. 3.

Any suitable means generally indicated at 20 may be provided for tripping the latch to.

allow the arm to swing forward.

The oven door is indicated at 22 and the door frame of the oven at 24. The upper end of the door is provided with an abutment or lug 26 beneath which the upper end of arm 12 is adapted to abut in the operation of removing the door from its frame. -When the door is to be removed from the oven, the arm 12 is first allowed to move forwardly whereby to lower its upper end in order to permit the upper end of the arm to pass under the lug 26 on the door and the ram A thereupon moved forward toward the door.

As the ram continues to move toward the door the arm 12 will exert an upward thrust on the door as the arm turns on its pivot and in so doing will elevate the door a short backward, thus removing the door clear of the oven. After the door has been moved back from the oven, it is necessary to remove the door from the ram in order that the latter may be inserte'dinto the oven for the purpose of ejecting the coke therein.

For removing'the door from its position on the ram I prefer to provide means for elevating the door above the ram as distinguished from means for moving the door laterally out of thepath of the ram pri-- marily for the reason that a less complicated mechanism is required for elevating the door above the ram than is required for moving the door to one side of the ram. The preferred elevating means comprises a pair of upright backwardly sloping tracks or guides 28 secured by suitable framework to the carriage D. As shown in the drawings the tracks are arranged to permit the ram and leveling bar to pass therebetween. Mounted for up and down travel on the track is a carrier 30, any suitable means being provided for movmg the carrier therealong. In the drawings I have shown a cable or chain 32 which 00- operates with a winch or hoisting mechanism 34 arranged on a platform at the top of the said tracks 28. The door is provided with a hook 36 for engagement with a cross bar 88 or equivalent means on the carrier 30 whereby when the door and carrier are coupled together the door will be carried upwardly with the carrier. In Fig. 3 the carr1er is shown in position adapted to engage the hook 36 preparatory to removing the door from its position on the ram head.

The tracks are preferably channel irons and the carrier 30 is preferably a frame having rollers which run in the channels. At the lower end of the tracks I prefer to provide forwardly and laterally extending wings 40 between which the door is adapted to pass as it is drawn back by the ram. I also prefer to provide the door with laterally extending guides or rollers 42 for entry into the track channels through cutouts 44 therein. By virtue of this arrangement the lower end of the door will be confined to the tracks as the carrier moves upwardly and lateral displacement of the door effectually prevented. In view of the fact that the tracks are inclined rearwardly it will be evident that a considerable part of the weight of the door will be taken by the tracks when the door is in its final elevated position as shown in dotted lines in Fig. 1. At the top of the door frame is an opening 46 through which the leveling bar is passed for leveling the coal, the opening being normally closed by a cover 48.

The operation of the improved machine may be briefly described as follows: The carriage D is positioned or spotted in front of the oven which is to be discharged and recharged, the ram being alined with the oven. By reason of the fact that the leveling bar is in the same vertical plane as the ram, it too will, of course, also be alined with the oven when the ram is alined therewith. The arm 12 on the ram head is swung forwardly on its fulcrum as determined by the limits on the latch 16 and the ram moved forward toward the door. The upper end of the arm 12 engages beneath the lug 26 on the door and as the ram continues to move forward the arm 12 will exert an upward thrust on the door and elevate it a sufficient distance to transfer the weight thereof to the ram. After the arm has swung inwardly and elevated the door the latch 16 holds the arm against reverse movement. The ram is then retracted with the door suspended thereon. The lower end of the door passes between the forwardly extending wings 40 on the tracks 28 and the guides or rollers 42 at the side of the door abut against the tracks. As the ram continues to move backward the door swings about its laterally extending guides 42 as an axis with the result that the upper end of the door moves inwardly somewhat further than it otherwise would. The carrier 30 having been previously lowered to the proper position, the hook 36 on the door extends over the transversely extending rod 38 on the carrier. Upward movement of the carrier will therefore carry the door with it, the lower end of the door being confined to the trackpath on account of the lateral rollers 42 thereof being confined to the track channels. The door is elevated a sufiicient distance to enable the ram to pass therebeneath, as shown in Fig. 1. After the door has been elevated out of the path of movement of the ram the usual operation of inserting the ram into the oven for ejecting the coke therefrom is effected, after which the door is replaced in the reverse order from which it was removed. The leveling bar B may then be inserted into the oven through the opening 46 provided in the door frame for that purpose.

It will be readily apparent that the arm 12 on the ram head does not interfere with the normal use of the ram during the operation of ejecting the coke and that by utilizing the whole has been more or less diagrammatically illustrated and it will be readily apparent that considerable rearrangement of the parts may be made without departing from the spirit of the invention. Furthermore, while it is preferred to elevate the door above the ram in order to remove it out of the path of movement of the ram, I consider it within the scope of the invention as regards the use of the ram for initially elevating the. door to provide other means for removing the door transversely, for example laterally out of the path of movement of the ram.

What I claim is:

1. In a machine for discharging a coke oven, leveling the charge therein and handling the oven door While the machine remains in one position in front of the oven, the combination with a carriage, a cokeejecting ram and a leveling bar, the bar being arranged over the ram, of a door handling mechanism arranged in vertical alinement with the ram and bar, said mechanism including means operable by the ram for initially releasing the door from the oven, and means for removing the door from out of the path of movement of the ram after its initial release from the oven.

2. In a machine for discharging a coke oven, leveling the charge therein and handling the oven door while the machine remains in one position in front of the oven, the combination with a carriage, a coke-ejecting ram and a leveling bar, the bar being arranged over the ram, of a door handling mechanism arranged in vertical alinement with the ram and bar, said mechanism including a turnable door-releasing means mounted on and operable by the ram, and means for removing the door from out of the path of movement of the ram.

3. In a machine for discharging a coke oven, leveling the charge therein and handling the coke oven door while the machine remains in one position in front of the oven, the combination with a carriage, a cokeejecting means and a charge-leveling means overlying the coke-ejecting means, of a doorhandling mechanism including a device operable by one of said means for initially releasing the door from the oven, and means for removing the released door from out of the path ofmovement of said coke-ejecting means.

4. In a machine for discharging a coke oven, leveling the charge therein and handling the oven door while the machineremains in one position in front of the oven, the combination with a carriage, a cokeejecting ram and a leveling bar, the bar being arranged over the ram, of a door handling mechanism arranged in vertical alinement with the ram and bar, said mechanism including means carried by the ram for initially elevating the door a relatively short distance,

and means independent of the ram for removing the door from out of the path of for movement toward and away from the door, of an upright arm pivoted at its lower end on the front end of the beam and swingable forwardly of the beam for interlocking engagement at its upper end with the door, said arm exerting an upward thrust on the door as the beam is moved toward the door whereby the weight of the door is transferred to the beam, and means for removing the door from out of the path of further forward movement of the beam.

7. In mechanism for handling coke-oven doors, the combination with a beam adapted for movement toward and away from the door, of an upright arm pivoted at its lower end on the front end of the beam and swingable forwardly of the beam for interlocking engagement at its upper end with the door, said arm exerting an upward thrust on the door as' the beam is moved toward the door,

a hoisting mechanism arranged above the beam, and vmeans for coupling the hoisting mechanism to the door for removing the door from out of the path of further forward movement of the beam.

8. In mechanism for handling the doors of coke-ovens, the combination with a beam adapted for movement toward and away from the door, of a door-lifting means on the front end of the beam movable upwardly with respect thereto, a guide-way extending upwardly over the beam from the front thereof and against which the lower end of the door is adapted to rest as it is moved rearwardly while supported on said door-4 lifting means, and means movable along the guide-way for elevating the door from said door lifting means.

9. In mechanism for handling the doors of coke ovens, the combination with a beam adapted for movement toward and away from the door, of a door-lifting means on the front end of the beam movable upwardly with respect thereto, a guide-way extending upwardly and rearwardly from the front of said beam, means below the foot of the inclined guide-way against which the lower end of the door is adapted to rest as it is moved rearwardly while supported by said door-lifting means, and means on the guideway for elevating the door from the doorlifting means.

10. In mechanism for handling the doors of coke ovens, the combination with a beam adapted for movement toward and away from the door, of a door-lifting means on the front end of the beam movable upwardly with respect thereto, a pair of upright tracks against which the door is adapted to abut when the beam with the door suspended thereon is moved rearwardly, and means movable along the tracks for elevating the door from out of the path of movement of the beam.

11 A coke discharging mechanism for horizontal coke oven chambers, comprising a coke'ejecting ram, an attachment on the discharging face of said ram for engaging a coke chamber door, means for operating said ram to remove the door from a coke chamber to be discharged, and means for removing and holding the removed door out of the normal path of said ram while the coke is being discharged from said chamber.

12. A coke discharging apparatus for horizontal coke oven chambers, comprising a coke discharging ram suitably mounted for discharging coke from a horizontal coke chamber, and means for removing a coke chamber door from the chamber to be discharged, said means comprising an attachment on the face of said ram for engaging said door.

In testimony whereof I aflix my si ature.

GLENN H. ES. 

